Help Me Adhesive thickness? - TilersForums.co.uk | Tile Forums

TCMCC · 2 Weeks Ago

Hi there,
Doing first paying job soon

, could someone advise me please, the tiles will be 300x600 ceramic for a wall. What would the correct thickness of adhesive be? Also the reccommended grout thickness?
Thanks!

**brian c** · 2 Weeks Ago

for that size of tile it would be 10mm round notch trowel and rapidflex adhesive for me and 2mm grout lines.

**Dave** · 2 Weeks Ago

you will need a cement based adhesive with that size tile and most will have a bed depth of about 6mm....this is the depth once the tile is bedded back to the wall......

Captain Slow · 2 Weeks Ago

I agree with Brian. I use a 10mm square notch trowel and def bagged addy.

TCMCC · 2 Weeks Ago

Thanks to all!

Yep it will be bagged adhesive!

**CLAYS TILES** · 2 Weeks Ago

I use a 10mm square notch trowel
i have used 12mm on 600x600 tile thou!

Pawelzik · 2 Weeks Ago

Agree with Brian, but would take 3 mm grout minimum. This was already discussed in former threads.

pt44 · 1 Week Ago

God I am so new

So I've been laying 600x300 porcelain on a wall this week. I'm presuming from this thread that I should have been using a 10mm square or round, giving me a 6mm bed. Just as well I've been using my 6mm square isn't it :'(

I do like to make life hard for myself. No wonder I have to actually lay FAR more than a 3mm bed - due to the size of tile causing havoc with any slight irregularities in the wall. I presume using a thicker bed (10mm square) would make this FAR easier, as there is some give in the bed? Or have I misunderstood something?

Paul

TCMCC · 1 Week Ago

Hiya,

Thanks to all for their advice, all up, and secure.? lol

Just grouting to do next week.

I do hope I speed up tho! It was only about 8 sq mtrs of brick bond with two mosiac borders! Best part of two days!!

**brian c** · 1 Week Ago

the speed will come with themore jobs you do.Dont worry about the speed as its the quality of work you should be concentrating on at these early stages.If you feel you need to ask any questions that you are unsure of ,then come on here and ask away thats what the forum is here for.A problem shared is a problem halfed

bj F · 1 Week Ago

If you are using cement based adhesive and you should be. Do not forget to prime the walls that is if the walls are gypsum as cement based products do not adhere to gypsum based products with out a primer.

robbo · 1 Week Ago

Quote:

Originally Posted by bj F

If you are using cement based adhesive and you should be. Do not forget to prime the walls that is if the walls are gypsum as cement based products do not adhere to gypsum based products with out a primer.

They will initially adhere to each other but it is possible that you will get a reaction between the cement based addy and the plaster....

BAL Prime APD

A modified acrylic polymer dispersion for use as a primer for a variety of backgrounds/bases prior to fixing ceramic tiles, mosaics and natural stone and prior to the application of levelling compound and the BAL WP1 TANKING SYSTEM. BAL PRIME APD isolates products containing calcium sulphate such as gypsum plaster and anhydrite screeds from cement-based adhesives, thus minimising the risk of reaction between the two materials.

Also suitable for use on cement:sand rendering, blockwork, plasterboard, cement:sand screeds and timber. It also provides surface strength to friable surfaces and reduces the porosity of porous backgrounds/bases, thus preventing the formation of air bubbles and prolonging the flow time with levelling compounds and extending the open time of tile adhesives. The primer is blue in colour to help ensure that a complete and even coating is obtained.